1. Move faster
   "The car quickened";
   - accelerate, speed up, speed
    
2. Give life or energy to
   "The cold water quickened him";
   - invigorate
    
3. Give new life or energy to
   "The pep talk quickened the discouraged team";
   - animate, recreate, reanimate, revive, renovate, repair, vivify, revivify
    
4. Make keen or more acute
   "quicken my appetite";
   - whet
    
5. Show signs of life
   "the foetus quickened"

Derived forms: quickens, quickening, quickened

Type of: arouse, brace, deepen, energise [Brit], energize, excite, intensify, move, perk up, stimulate, stir

Encyclopedia: Quicken